<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <li v-for="item in items">{{ item.a }}</li>

    </div>
    <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script> 
    <script>
        var vm = new Vue({
            el: "#app",
            data: {
                message: "hi, vue",
                ok: 1,
                type: "A",
                items: [
                    {a: 'apple'},
                    {a: 'banana'},
                    {a: 'carrot'},
                    {a: 2},
                ]
            },
            methods: {}
        })
    </script>
</body>
</html>